00001 #ifndef _sys_Dispatcher_h
00002 #define _sys_Dispatcher_h
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00025 #include "Poller.h"
00026 #include "Runnable.h"
00027 #include "Mutex.h"
00028
00029 #include <memory>
00030 #include <queue>
00031 #include <boost/function.hpp>
00032
00033 #include <assert.h>
00034
00035
00036 namespace qpid {
00037 namespace sys {
00038
00039 class Dispatcher;
00040 class DispatchHandle : public PollerHandle {
00041 friend class Dispatcher;
00042 public:
00043 typedef boost::function1<void, DispatchHandle&> Callback;
00044
00045 private:
00046 Callback readableCallback;
00047 Callback writableCallback;
00048 Callback disconnectedCallback;
00049 Poller::shared_ptr poller;
00050 Mutex stateLock;
00051 enum {
00052 IDLE, INACTIVE, ACTIVE_R, ACTIVE_W, ACTIVE_RW,
00053 DELAYED_IDLE, DELAYED_INACTIVE, DELAYED_R, DELAYED_W, DELAYED_RW,
00054 DELAYED_DELETE
00055 } state;
00056
00057 public:
00058 DispatchHandle(const IOHandle& h, Callback rCb, Callback wCb, Callback dCb) :
00059 PollerHandle(h),
00060 readableCallback(rCb),
00061 writableCallback(wCb),
00062 disconnectedCallback(dCb),
00063 state(IDLE)
00064 {}
00065
00066 ~DispatchHandle();
00067
00068 void startWatch(Poller::shared_ptr poller);
00069 void rewatch();
00070 void rewatchRead();
00071 void rewatchWrite();
00072 void unwatch();
00073 void unwatchRead();
00074 void unwatchWrite();
00075 void stopWatch();
00076
00077 protected:
00078 void doDelete();
00079
00080 private:
00081 void dispatchCallbacks(Poller::EventType dir);
00082 };
00083
00084 class Dispatcher : public Runnable {
00085 const Poller::shared_ptr poller;
00086
00087 public:
00088 Dispatcher(Poller::shared_ptr poller);
00089 ~Dispatcher();
00090
00091 void run();
00092 };
00093
00094 }}
00095
00096 #endif // _sys_Dispatcher_h